Scab Epidemic Risk Model

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Plant Pathologist Commentary: 07/22/2010

Harvest has started in earnest as the first reports of spring wheat harvest in southern parts of the state and the winter wheat harvest in the northwestern part of the state are trickling in. This is ramping up to be an unusually early harvest and a stark contrast to last year's struggles. Initial comments point to a wheat and barley crop with acceptable yield and quality.

As harvest gets underway, disease problems for this growing season are also nearing an end. Take note that volunteer wheat should be destroyed two weeks prior to planting any winter wheat to eliminate the green bridge that potentially can create problems for a number of important disease and pest problems, including BYDV and WSMV.

Have a safe and plentiful harvest!

Important Note: Please review Terms of Use before utilizing this site. This Fusarium Head Blight (FHB, or 'scab') model is a pre-flowering model. It is meant to be applied using weather conditions during the week leading up to flowering. Therefore, the epidemic risk for a particular field should be determined by selecting a time coinciding with or just prior to the initiation of flowering in that field. A growth stage estimator is available on this website, but you should still monitor growth in your own fields to better estimate the date on which flowering begins.